篩選支援

ExpressionGroup 區段的 Filter 標記用於在元件搜索程序上套用篩選。

繼續進行我們的範例，您只想要監控使用中的框架轉送 PVC。您可以將 Filter 標記套用到 frPVCInfoCustom 自訂廠商憑證，以監控這些特定元件。 Filter 會新增至 ExpressionGroup。

附註：您可以在 Filter 運算式中使用 MVEL 語法。如需 MVEL 語法、廠商憑證公用程式函數和廠商憑證全域變數的詳細資訊，請參閱本指南的附錄。

以下範例顯示更新後的 frPVCInfoCustom 自訂廠商憑證外觀。在此程序中進行的變更會以粗體表示。

<?xml version="1.0" encoding="UTF-8" ?> 
<!-- Auto-generated by the type catalog local manager.--> 
<DataModel namespace="http://im.ca.com/certifications/snmp" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"   xsi:noNamespaceSchemaLocation="SNMPCertificationFacet.xsd"> 
  <FacetType name="frPVCInfoCustom" descriptorClass="com.ca.im.core.datamodel.certs.CertificationFacetDescriptorImpl"> 
    <Documentation>Frame Relay PVC Vendor Certification</Documentation> 
    <FacetOf namespace="http://im.ca.com/core" name="Item" /> 
    <AttributeGroup name="AttributeGroup" external="true" list="true"> 
      <Documentation /> 
      <Attribute name="INDEX" type="ObjectID"> 
        <Documentation /> 
        <Source>1.3.6.1.2.1.10.32.2.1.4</Source> 
        <IsIndex>true</IsIndex> 
        <IsKey>false</IsKey> 
        <NeedsDelta>false</NeedsDelta> 
      </Attribute> 
      <Attribute name="frCircuitReceivedFECNs" type="Long"> 
        <Documentation /> 
        <Source>1.3.6.1.2.1.10.32.2.1.4</Source> 
        <IsIndex>false</IsIndex> 
        <IsKey>true</IsKey> 
        <NeedsDelta>true</NeedsDelta> 
      </Attribute> 
      <Attribute name="frCircuitReceivedBECNs" type="Long"> 
        <Documentation /> 
        <Source>1.3.6.1.2.1.10.32.2.1.5</Source> 
        <IsIndex>false</IsIndex> 
        <IsKey>true</IsKey> 
        <NeedsDelta>true</NeedsDelta> 
      </Attribute> 
      <Attribute name="frCircuitSentFrames" type="Long"> 
        <Documentation /> 
        <Source>1.3.6.1.2.1.10.32.2.1.6</Source> 
        <IsIndex>false</IsIndex> 
        <IsKey>true</IsKey> 
        <NeedsDelta>true</NeedsDelta> 
      </Attribute> 
      <Attribute name="frCircuitSentOctets" type="Long"> 
        <Documentation /> 
        <Source>1.3.6.1.2.1.10.32.2.1.6</Source> 
        <IsIndex>false</IsIndex> 
        <IsKey>true</IsKey> 
        <NeedsDelta>true</NeedsDelta> 
      </Attribute> 
      <Attribute name="frCircuitReceivedFrames" type="Long"> 
        <Documentation /> 
        <Source>1.3.6.1.2.1.10.32.2.1.8</Source> 
       <IsIndex>false</IsIndex> 
       <IsKey>true</IsKey> 
       <NeedsDelta>true</NeedsDelta> 
      </Attribute> 
      <Attribute name="frCircuitReceivedOctets" type="Long"> 
        <Documentation /> 
        <Source>1.3.6.1.2.1.10.32.2.1.9</Source> 
        <IsIndex>false</IsIndex> 
        <IsKey>true</IsKey> 
        <NeedsDelta>true</NeedsDelta> 
      </Attribute> 
      <Attribute name="frCircuitState" type="int"> 
        <Documentation /> 
        <Source>1.3.6.1.2.1.10.32.2.1.3</Source> 
        <IsIndex>false</IsIndex> 
        <IsKey>false</IsKey> 
        <NeedsDelta>false</NeedsDelta> 
      </Attribute> 
     </AttributeGroup> 
     <Protocol>SNMP</Protocol> 
     <DisplayName>Frame Relay PVC Certification</DisplayName> 
     <Expressions> 
       <ExpressionGroup destCert="{http://im.ca.com/normalizer}frPVCInfo" name="frPVCInfoDS"> 
         <Filter>(frCircuitState==2)</Filter> 
         <Expression destAttr="Indexes">INDEX</Expression> 
         <Expression destAttr="Names">"Frame Relay " + INDEX</Expression> 
         <Expression destAttr="FECNIn">frCircuitReceivedFECNs</Expression> 
         <Expression destAttr="BECNIn">frCircuitReceivedBECNs</Expression> 
         <Expression destAttr="FramesIn">frCircuitReceivedFrames</Expression> 
         <Expression destAttr="FramesOut">frCircuitSentFrames</Expression> 
         <Expression destAttr="BytesIn">frCircuitReceivedOctets</Expression> 
         <Expression destAttr="BytesOut">frCircuitSentOctets</Expression> 
         <Expression destAttr="BitsIn">frCircuitReceivedOctets*8</Expression> 
         <Expression destAttr="BitsOut">frCircuitSentOctets*8</Expression> 
       </ExpressionGroup> 
     </Expressions> 
     <MIB>RFC1315-MIB</MIB> 
    </FacetType> 
</DataModel>

我們假設在匯入自訂廠商憑證之後進行這些變更。因此，在您進行變更後，更新廠商憑證。

更多資訊：

更新自訂廠商憑證